Wireless speaker



FIG. 1 is a front elevational view of a wireless speaker showing a preferred embodiment of our new design;

FIG. 2 is a back elevational view thereof;

FIG. 3 is a left-side elevational view thereof; the right side being a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front perspective view thereof; and,

FIG. 7 is a rear perspective view thereof. 

The ornamental design for a wireless speaker, as shown and described. 